166 E. A. Vainio, Pyrenocarpeae. 



Hypothallus indistinctus. Nucleus albidus, haud resinoso- 

 guttulosus, jodo non reagens, metaplasmate ascorum rubescente. 

 Paraphyses crass. O.ooos mm, simplices. Asci long. O.060 — O.090, 

 crass. O.016 — O.022 mm, in apice membrana magis incrassata. 

 Sporae 8:nae, decolores, murales, cellulis sat numerosis, mem- 

 brana tenui, haud gelatinosa. Hyphae e perithecio excrescentes 

 et supra substratum inter apothecia provenientes parce sunt 

 aeruginosae, vulgo autem fuscae, crass. O.003 mm, increbe et 

 parum constricte articulatae, saepe in conceptacula continuatae 

 O.040 — 0.080 mm lata, fusco-rufescentia aut partim aeruginosa, 

 vacua aut Pleurococcis (aut algis iis subsimilibus) glomeruloso-divisis 

 impleta, etiamsi apertura destituta. Talis „symbiosis" Pleuro- 

 coccorum in organis fungorum corticolarum saepe, at tantum 

 fortuito, provenit et functionem gonidiorum his algis non indicat. 



3. M. fallaciosa (Stizenb.) Vain. 



Polublastia fallaciosa (Stizenb. in lit.) Arn. Fl. 1863 p. 604, Lich. 

 Exs. (1864) n. 269, Lich. Frank. Jur. (Fl. 1885) p. 264, Lich. Munch. (18911 

 p. 116. Verrucaria Frankliniana Leight. Not. Lich. Richards. Arct. Am. 

 (1865) p. 199; Stizenb. Ind. Lich. Hyperb. (1876) p. 54. Verrucaria fal- 

 lacissima (Stizenb. in lit.) Nyl. Lich. Lapp. Or. (1866) p. 173. Fungus 

 sec. Th. Fr. Polybl. Scand. (1877) p. 5. Verrucaria fallaciosa Nyl. Fl. 

 1881 p. 189. 



Exs. Arn. Lich. Exs. (1864) n. 269. - - Anzi Lich. Exs. Min. Rar. 

 It. Super. (1865) n. 384 a (sec. Arn. L. Fr. J. p. 264). 



Thallus et hypothallus indistinctus. Apothecia sparsa, 

 verrucas formantia hemisphaericas, O.25 — 0.4 mm latas, atras, 

 opacas, basi sat praeruptas et saepe extrorsum anguste 

 maculato-dilatatas, vertice convexo, margine ostiolari haud 

 prominente, ostiolo O.010 — O.030 mm lato, haud aut rarius 

 leviter foveolato. Perithecium vulgo cyanescenti-nigricans 

 (in typo Arnoldiano), dimidiatum. Paraphyses numerosae 

 (in typo). Asci vulgo suboblongi. Sporae distichae, elli- 

 psoideae et apicibus rotundatis (in typo), submurales, „septis 

 transversis 3 — 5, long. O.015 — O.021, crass. O.ooe — O.011 mm" (Arn. 

 Lich. Munch, p. 116). 



Distr. Ad corticem Betulae in Kola in Lapponia Tulo- 

 mensi (N. I. Fellman). 



Habitu Campylaciae epidermidis omnino similis et in Fen- 

 nia praetervisa. In Arn. Lich. Exs. n. 269 perithecium vulgo 

 cyanescenti-nigricans, at interdum sordide subviolascenti-fuscescens, 



